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AssigneeT-Mobile International AG
InventorsAndreas Hochscherff, Dieter Jacobsohn, Karl-Heinz Nenner
Estimating the term…
The invention relates to a method for implementing call control in packet-switched networks, wherein a connection is established between two communications partners by means of static multiplexing in a network and the use of the network for telephone services on an application level, causing signaling between two participating terminal devices. In the course of the general development of the internet, it seems reasonable for operators of conventional telecommunications networks to operate their telephone services via packet-switched networks. However, the establishment of a completely new SIP-based protocol world is disadvantageous for an operator that wishes only to continue its known telephone services. As a result, the operator has the aim of enhancing the transfer of protocols such that the protocols known from circuit-switched technology may be transferred in a simplified fashion to packet-switched networks. Said aim is achieved in that a user channel is configured in the packet-switched access network, wherein call control occurs by means of a circuit-switched signaling via the IP user channel.
A method for realizing call control in packet-switched telecommunication networks, in which a connection is formed between two communication partners in a network via statistical multiplexing (transfer of pooled data) and the use of the network for telephone services is performed on a level which forms a signaling between two involved terminals, whereas in a packet-switched access network (2), a user channel is established on user level in consideration of the access method of a terminal (1), whereas call control is formed by means of a combination of an IP access network (2) with CS signaling, characterized in that a separation is performed of signaling and user channels, in which the signaling and call control function takes place through a network termination point node in form of a Pseudo-MSC, and the user channel communication passes through a dial-up node, gateway, whereas the network termination-point node is restricted to a signaling function with, works on standard IP network attachable CS-Signaling protocol and is placed network-external within the communication network, from the aspect of the IP-access network.
Dependencies are inferred from the claim text.